A commercial interior is easy to judge on opening day.
Everything is clean. The furniture lines up. The lighting has been tuned for photographs. Nobody has dragged a delivery trolley across the floor, moved a partition three times or discovered that the beautiful reception desk has nowhere sensible to hide cables.
The harder test comes later.
Good design has to survive use. It needs to accommodate cleaning, maintenance, staff changes, new equipment and the slow accumulation of decisions nobody anticipated during the concept stage. That is why the most useful design question is rarely “What will look impressive?” It is “What will still make sense once the space has been lived in?”
That mindset is familiar in digital work too. QBF stands for Questions Before Features. The same discipline applies to physical space: understand the problem before choosing the finish.
Begin with what the space has to do
A flooring sample can be beautiful and still be wrong for the room.
Before selecting materials, map the actual behaviour of the space. Where do people enter with wet shoes? Which route do deliveries take? Where will chairs be moved repeatedly? Is the reception area also used for events? Does the café queue cross a circulation route at lunchtime? Will maintenance teams need access through customer-facing areas?
The more specific the questions, the better the design decisions become.
This is where commercial interiors differ from private rooms. The number of users is higher, wear is less predictable and the cost of disruption can be significant. Replacing a finish in a home is inconvenient. Replacing it in a trading premises may require phased work, temporary closures or out-of-hours installation.
Design for the operating model, not the mood board.
Choose materials for wear patterns, not abstract durability
“Durable” is not a single property.
A material can resist abrasion but stain easily. It can handle foot traffic but chip at exposed edges. It can be simple to clean yet difficult to repair invisibly. A finish that works in an office corridor may perform very differently in a restaurant entrance or retail threshold.
Official Irish building regulations guidance should sit alongside the brief where accessibility, safety or performance requirements apply. Product selection comes after those constraints are understood.
Look at where damage is likely to occur. Entrances collect grit and moisture. Chair zones experience repeated local abrasion. Service routes see wheeled loads. Toilets and hospitality areas need cleaning regimes that may be more aggressive than general office space.
Once those patterns are understood, materials can be compared on the right criteria: surface hardness, maintenance, repairability, slip performance, stain resistance, acoustic impact and compatibility with the cleaning products the facilities team actually uses.
That last point is routinely overlooked. A finish is only as practical as its maintenance instructions.
Terrazzo earns attention because it combines structure and appearance
Some materials become design trends because of colour or texture. Others persist because their visual character is tied to how they are made.
Terrazzo flooring uses aggregates such as marble, stone or glass within a cementitious or resin-based matrix, which is then finished to create a smooth surface. Midland Stone supplies a wide range of terrazzo chippings, including marble, glass, mirror and mother-of-pearl options, allowing designers to vary colour, scale and texture.
For commercial interiors, the attraction is not simply that terrazzo looks distinctive. It can be specified as part of the architecture rather than applied as a decorative layer. Aggregate choice, matrix colour, divider strips and pattern can all contribute to wayfinding or zoning without covering the floor in additional graphics.
That flexibility is useful when a space needs visual identity without becoming visually noisy.
Terrazzo still requires correct specification and skilled installation. Substrate preparation, movement, detailing, curing, grinding and sealing all affect the result. A material with a reputation for longevity can perform badly if the build-up underneath it is wrong.
Sampling is where vague preferences become decisions
A small sample is one of the cheapest ways to expose bad assumptions.
Colours read differently under different lighting. Large aggregate can feel subtle in a product photo and dominant across fifty square metres. A warm matrix can change how a grey marble chip reads. Nearby timber, paint and metal finishes alter the overall balance.
Ask for physical samples early enough that they can change the design. Do not wait until procurement has effectively locked the choice.
For bespoke mixes, create a sample panel at a useful scale. Review it in the actual light if possible. Look at it next to the wall finish, joinery and furniture rather than in isolation. If the floor will cross several zones, check it from different distances.
This is the physical equivalent of prototyping a digital product. QBF’s Questions Before Features approach is built around validating the need before adding complexity. A sample does the same thing for material decisions: it turns an abstract preference into something that can be tested.
Maintenance should influence design before handover
Facilities teams inherit design decisions long after the design team has left.
Bring maintenance into the conversation earlier. Ask how often the floor will be cleaned, what machinery is available, whether specialist products are acceptable and how stains or local damage will be dealt with. Find out who is responsible for periodic resealing or polishing if the system requires it.
The goal is not to choose the lowest-maintenance material at any cost. It is to make the maintenance commitment explicit.
A reception floor that needs specialist care twice a year may be entirely reasonable if the organisation has planned for it. The same specification is a poor choice if nobody knows the requirement until the finish starts to dull.
Documentation matters too. Keep product data, installer information, cleaning guidance and details of the exact mix or finish. Five years later, that information can turn a difficult repair into a manageable one.
Design transitions as carefully as the main surfaces
Most material failures are not dramatic failures of the material itself. They happen at junctions.
Floor meets threshold. Terrazzo meets timber. A new finish meets an existing slab. A service cover interrupts a continuous surface. A movement joint lands where the visual concept hoped it would not.
These details need to be resolved in drawings, not improvised on site.
Consider changes in thickness, substrate movement, edge protection and cleaning. A beautiful floor with an awkward raised transition becomes an accessibility problem. A poorly located joint can undermine the pattern. An exposed edge at a busy doorway may receive far more impact than the field of the floor.
The same applies to skirtings and wall bases. Commercial cleaning often hits the lower 150 millimetres of a wall harder than anyone expects. Materials and junctions should recognise that reality.
Sustainability is partly about how long you keep things
Environmental claims around interiors can become overly focused on individual product labels.
Product information matters, but so do lifespan and adaptability. A material that remains serviceable for decades, can be maintained and does not need to be replaced every time the branding changes can reduce the churn of fit-out work.
That makes neutral, robust base materials valuable. Brand identity can then sit in elements that are easier to update: paint, graphics, furniture, lighting or digital content.
For project teams working in Ireland, current building and accessibility requirements should be checked through official sources such as the Department of Housing’s Technical Guidance Documents and relevant professional advice. Slip resistance, accessibility and fire performance depend on the specific application and system, so they should be verified rather than assumed from a material category.
Good sustainable design is often boring in the best sense. It avoids unnecessary replacement.
Leave room for the business to change
A commercial interior is a snapshot of a business at one moment. The business will move on.
Teams grow. Customer journeys change. Technology gets replaced. A meeting room becomes a studio. A retail zone becomes click-and-collect. Fixed decisions should therefore be reserved for things worth fixing.
Choose base materials that can tolerate layout change. Put services where they can be accessed. Avoid custom details that make every future alteration expensive. Keep a clear record of what has been installed.
The strongest interiors are not those with the most features. They are the ones where the important decisions have been made deliberately.
That is why the question-before-feature mindset transfers so well from websites to physical space. A business does not need a terrazzo floor because terrazzo is fashionable. It may need one because the material, finish, maintenance profile and visual language fit the way the space will actually be used.
Five years later, that distinction is visible.